<template>
    
       
        <el-container class="home-container" direction="vertical">
            <el-header>
                <div>
                    <img src="../assets/img/heima.png" alt="">
                    <span>电商后台管理系统</span>
                </div>
                <el-button :plain="true" @click="open4">退出登录</el-button>
            </el-header>

            <el-container>
                <el-aside :width="isCollapse ? '64px' : '200px'">
                    <div class="toggle-button" @click="toggleCollapse">|||</div>

                    <el-menu :default-active="activePath" background-color="#333744" :router="true" text-color="#fff" active-text-color="#409EFF" unique-opened :collapse="isCollapse" :collapse-transition="false">
                        <!--一级菜单-->
                        <el-submenu :index="item.id + ''" :key="item.id" v-for="item in menulist">
                            <!--一级菜单的模板区域-->
                            <template slot="title">
                            <!--图标-->
                            <i :class="iconObj[item.id]"></i>
                            <!--文本-->
                            <span>{{item.authName}}</span>
                            </template>
                            
                            <el-menu-item @click="saveNavState('/' + subItem.path)" :index="'/' + subItem.path" v-for="subItem in item.children" :key="subItem.id">
                                <template slot="title">
                                <!--图标-->
                                <i class="el-icon-menu"></i>
                                <!--文本-->
                                <span>{{subItem.authName}}</span>
                                </template>
                            </el-menu-item>
                            
                        </el-submenu>
                      
                        </el-menu>
                </el-aside>
                <el-main><router-view></router-view></el-main>
            </el-container>
        </el-container>
        
</template>

<script>
export default {
    data(){
        //左侧菜单
        return {
            menulist:[],
            iconObj:{
                '125':'iconfont icon-user',
                '103':'iconfont icon-tijikongjian',
                '101':'iconfont icon-shangpin',
                '102':'iconfont icon-danju',
                '143':'iconfont icon-baobiao',
                '145':'iconfont icon-baobiao'
            },
            //是否折叠
            isCollapse:false,
            activePath:''
        }
        
    },
    created() {
        this.getMenuList()
        this.activePath = window.sessionStorage.getItem('savePath')
    },
    methods:{
        open4(){
            //销毁token
            window.sessionStorage.clear();
            this.$router.push('/login')
        },
        //获取所有的菜单
        async getMenuList(){
            const {data:res} = await this.$http.get('menus')
            if(res.meta.status !== 200) return this.$message.error(res.meta.msg)
            this.menulist = res.data
            console.log(res)
        },
        toggleCollapse(){
            //点击按钮进行折叠和展开
            this.isCollapse = !this.isCollapse
        },
        saveNavState(savePath){
            window.sessionStorage.setItem('activePath',savePath)
            this.activePath = savePath
        }
    }
}
</script>

<style lang="less" scoped>
.home-container{
    height: 100%;
}
.el-header{
    background-color: #373d41;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #fff;
    font-size: 20px;
    > div {
        display: flex;
        align-items: center;
        span{
            margin-left: 15px;
        }
    }
    
}
.el-aside{
    background-color: #333744;
    .el-menu{
        border-right: none;
    }
}

.el-main{
    background-color: #eaedf1;
}

.iconfont{
    margin-right: 10px;
}

.toggle-button{
    background-color: #4A5064;
    font-size: 10px;
    line-height: 24px;
    color: #fff;
    text-align: center;
    letter-spacing: 0.2em;
    cursor: pointer;
}

</style>